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U1
BANK 500
PS I2C1
MIO17/
MIO16
U38
MPS430
The addresses of each target device on the I2C1 U20 and U22 PCA9548A switches are
identified in the following tables.
Table 11: I2C1 TCA9548A U20 Target Device Addresses
TCA9548A U20 (Addr 0x74) Port
0
1
2
3
4
5
6
7
UG1532 (v1.0) March 30, 2022
ZCU670 Board User Guide
Figure 9: I2C1 Bus Topology
U18
L/S
P4_1
P4_2
EEPROM U16
Si5341 Clock U43
USER SI5381A C0 Clock U47
USER MGT Si570 Clock U48
8A34001 (zSFP ClK Recovery) U409
CLK104 Connector J101
RFMC LPAF-50 Connector J82
No Connection
Chapter 3: Board Component Descriptions
U20
TCA9548A
I2C1_SDA/SCL
SDA/SCL
0x74
U22
TCA9548A
SDA/SCL
0x75
I2C1 Bus Device
Send Feedback
IIC_EEPROM_SDA/SCL
SD0/SC0
S15381_SDA/SCL
SD1/SC1
USER_S1570__C0_SDA/SCL
SD2/SC2
USER_MGT_S1570_SDA/SCL
SD3/SC3
8A34001_SDA/SCL
SD4/SC5
CLK104_SDA/SCL
SD5/SC5
RFMC_I2C_SDA/SCL
SD6/SC6
Not Connected
SD7/SC7
FMCP_HSPC_II_SDA/SCL
SD0/SC0
USER_SI570_PSREF_SDA/SCL
SD1/SC1
SYSMON_SDA/SCL
SD2/SC2
PS_DDR4_SODIMM_SDA/SCL
SD3/SC3
SFP3_IIC_SDA/SCL
SD4/SC5
SFP2_IIC_SDA/SCL
SD5/SC5
SFP1_IIC_SDA/SCL
SD6/SC6
SFP0_IIC_SDA/SCL
SD7/SC7
X25700-111621
Target Device Address
0X54
0x76
0X5D
0X5D
0x5B
0x2F
USER
NA
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